KINETIC MECHANISMS IN ION-EXCHANGE PROCESSES

• Tipo: Artigo em Revista Científica Internacional
• Data: 1995

Autores

FERNANDEZ, A (Autor) Outra; DIAZ, M (Autor) Outra; Alírio Rodrigues (Autor) FEUP

Revista

Título: Chemical Engineering Journal and the Biochemical Engineering Journal

Vol. 57 Nº 2

Páginas: 17-25

ISSN: 0923-0467

Editora: Elsevier B.V.

Indexação

ISI Web of Knowledge - 14 Citações

ISI Web of Science

Scopus - 15 Citações

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Outras Informações

ID Authenticus: P-001-H6Y

DOI: 10.1016/0923-0467(94)02865-8

Abstract (EN): The kinetic mechanisms for cationic and chelating ion exchange were investigated. The applicability of kinetic equations to fit experimental results was demonstrated using the pore diffusion and unreacted core models and two different experimental systems: K+ -Na+ in sulphonic resins and metal-Na+ in iminodiacetic chelating resins. Microscopic observations of intraparticle profiles in the case of metal-Na+ exchange show that the unreacted-core model is adequate for describing such a process, allowing the calculation of intraparticle diffusivities.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9